Washing Machine
E40
The E40 error code on an Electrolux washing machine signals a door lock fault — the machine cannot confirm the door is properly closed and locked, so it refuses to run as a safety measure. It’s a common fault and often fixable at home without a call-out.
What does this error mean?
The E40 code tells you the machine’s control board is not receiving a signal that the door lock mechanism has engaged correctly. Electrolux washing machines are designed to abort the cycle if the door isn’t secured — this prevents water leaks and protects you from a spinning drum. The fault could lie with the lock itself, the door catch, the wiring, or in some cases the control board.
Est. repair cost
£15–£35 DIY door interlock part; £80–£130 for a professional repair including parts and labour
🔍 Likely causes
🛠️ Step-by-step fix
Reset the machine: turn it off at the plug, wait 5 minutes, then power back on and try a new cycle. A software glitch after a power cut often clears with a hard reset.
Inspect the door seal and door opening for trapped clothing, fluff, or debris. Even a thin item caught in the door gap can stop the lock from engaging fully.
Check the door handle and catch for visible damage. Open and close the door firmly — you should hear and feel a solid click. If the handle feels loose or the catch looks cracked, this is your likely culprit.
Examine the door interlock visible through the door aperture. If you can see it’s burnt, broken, or the plastic is cracked, it needs replacing. A replacement Electrolux door interlock costs £15–£35 online and can be swapped out with a Torx screwdriver and basic DIY confidence — unplug the machine before starting.
Check the wiring connector at the door lock for loose or corroded pins. With the machine unplugged, gently reseat the connector. Do not probe live electrical components.
If none of the above resolves the fault, the control board may be at fault. Stop DIY at this point and call a qualified appliance engineer.
📞 When to call a professional
If you’ve checked the door catch, reset the machine, and replaced the door interlock but the E40 code persists, call a registered appliance repair engineer — the fault likely lies in the wiring harness or control board, which requires diagnostic equipment to confirm. When you call, tell them: ‘My Electrolux washing machine is showing error code E40 — I’ve checked the door lock and reset the machine but the fault remains.’ This saves diagnostic time and money.
⚖️ Repair or replace?
A door interlock replacement by a professional typically costs £80–£130 including parts and labour — well worth it on a machine under 7 years old. If your machine is over 8–10 years old and the repair quote exceeds £150, it’s worth comparing against a new mid-range Electrolux or equivalent (£400–£600), particularly if other components are ageing. For machines under 5 years old, always repair first.